The one above said well. Give up math, I haven't done it in junior high school, and 99% can't do it. I don't know your foundation, just guessing, and there are many variables in mathematics, not only strength but also luck. Physical chemistry is also difficult to handle. Relatively speaking, those who haven't done it in junior high school can participate in the materialization competition. As long as you study hard in high school, you can still do it, as long as you have a good foundation. First place in physics. That's right. This was seen by a classmate of mine who won the first prize. In chemistry, one of my excellent classmates left with a difference of 1.5. He read Inorganic Chemistry (Higher Education Press) with a blue cover (edited by the Inorganic Chemistry Teaching and Research Department of Beijing Normal University, Huazhong Normal University and Nanjing Normal University), and it seems to be from Peking University Press. If you want to learn math, I want to say that one of my classmates won the first prize last year and the first prize in the preliminary contest this year. He has only one competition book. Published by Nanjing Normal University, but he hardly reads it. He just delves into any topic by himself, such as the formula for finding the root of cubic equation. He thought for a long time, and of course he also referred to other books (found in the library), mathematics. It is helpful and good to take part in the college entrance examination, but it is more difficult to get the ranking.